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Full Description
This book comprehensively discusses diesel combustion phenomena like ignition delay, fuel-air mixing, rate of heat release, and emissions of smoke, particulate and nitric oxide. It enables quantitative evaluation of these important phenomena and parameters. Most importantly, it attempts to model them with constants that are independent of engine types and hence they could be applied by the engineers and researchers for a general engine. This book emphasizes the importance of the spray at the wall in precisely describing the heat release and emissions for most of the engines on and off-road. It gives models for heat release and emissions. Every model is thoroughly validated by detailed experiments using a broad range of engines. The book describes an elegant quasi-one-dimensional model for heat release in diesel engines with single as well as multiple injections. The book describes how the two aspects, namely, fuel injection rate and the diameter of the combustion bowl in the piston, have enabled meeting advanced emission, noise, and performance standards. The book also discusses the topics of computational fluid dynamics encompassing RANS and LES models of turbulence. Given the contents, this book will be useful for students, researchers and professionals working in the area of vehicle engineering and engine technology. This book will also be a good professional book for practising engineers in the field of combustion engines and automotive engineering.
Contents
Introduction.- Phenomenology of diesel Combustion and modelling.- Experiments.- Turbulent Structure of the Diesel Spray.- Ignition Delay in a Diesel Engine.- Heat Transfer.- Heat Release in Indirect Injection engines.- Mixing Correlations for Smoke and Fuel Consumption of Direct Injection engines.- Heat Release in Direct Injection Engines.- Prediction of the Rate of Heat Release of Mixing-Controlled Combustion in a Common-Rail Engine with Pilot and Post Injections.- Hydrocarbons from DI Diesel Engines.- Hydrocarbon Emissions from Spark Ignition Engines.- Smoke from DI Diesel engines.- Oxides of Nitrogen from Direct Injection Diesel Engines.- Particulate Matter from Direct Injection Diesel engines.- Multi-dimensional Modelling of Diesel Combustion.- Multi-dimensional Modelling of Diesel Combustion.- Large Eddy Simulation and Prediction of Heat Release, NOx and Soot in Diesel and Gasoline DI engines.
